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怎么用Lambda进行list合并以及去重
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怎么用Lambda进行list合并以及去重
List<String> list = new ArrayList<String>();
list.add("a,b");
list.add("a,c");
list.add("c,d");上面的list集合里面的，放在一起，用逗号切割，然后去重，返回{"a","b","c","d"}这个集合，用Lambda怎么实现
前天 21:03
List<String> list = new ArrayList<>();
list.add("a,b");
list.add("a,c");
list.add("c,d");
List<String> collect1 = list.stream().map(obj -> Arrays.asList(obj.split(","))).flatMap(Collection::stream).distinct().collect(Collectors.toList());
System.out.println(collect1);
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